| ｄＢ換算表 （電界強度の基準電圧 0dB＝1μV/m） | |||
| dB | 電圧比 | 電力比 | 減衰比 |
| 0dB | 1.00倍 | 1.00倍 | 1.000 |
| 1dB | 1.12倍 | 1.25倍 | 0.891 |
| 2dB | 1.26倍 | 1.59倍 | 0.794 |
| 3dB | 1.41倍 | 1.99倍 | 0.708 |
| 4dB | 1.59倍 | 2.53倍 | 0.631 |
| 5dB | 1.78倍 | 3.17倍 | 0.562 |
| 6dB | 2.00倍 | 4.00倍 | 0.501 |
| 7dB | 2.24倍 | 5.02倍 | 0.447 |
| 8dB | 2.51倍 | 6.30倍 | 0.398 |
| 9dB | 2.82倍 | 7.95倍 | 0.355 |
| 10dB | 3.16倍 | 9.99倍 | 0.316 |
| 11dB | 3.55倍 | 12.60倍 | 0.282 |
| 12dB | 3.98倍 | 15.84倍 | 0.251 |
| 13dB | 4.47倍 | 19.98倍 | 0.224 |
| 14dB | 5.01倍 | 25.10倍 | 0.200 |
| 15dB | 5.63倍 | 31.70倍 | 0.178 |
| 16dB | 6.31倍 | 39.81倍 | 0.158 |
| 17dB | 7.08倍 | 50.12倍 | 0.141 |
| 18dB | 7.95倍 | 63.20倍 | 0.126 |
| 19dB | 8.92倍 | 79.57倍 | 0.112 |
| 20dB | 10.00倍 | 100.00倍 | 0.100 |
| 21dB | 11.22倍 | 125.89倍 | |
| 22dB | 12.59倍 | 158.49倍 | |
| 23dB | 14.13倍 | 199.53倍 | |
| 24dB | 15.85倍 | 251.19倍 | |
| 25dB | 17.78倍 | 316.23倍 | |
| 26dB | 19.95倍 | 398.11倍 | |
| 27dB | 22.39倍 | 501.19倍 | |
| 28dB | 25.12倍 | 630.96倍 | |
| 29dB | 28.18倍 | 794.32倍 | |
| 30dB | 31.62倍 | 1000.00倍 | 0.0316 |
| 31dB | 35.48倍 | 1258.93倍 | |
| 32dB | 39.81倍 | 1584.89倍 | |
| 33dB | 44.67倍 | 1995.26倍 | |
| 34dB | 50.12倍 | 2511.89倍 | |
| 35dB | 56.23倍 | 3162.28倍 | |
| 36dB | 63.10倍 | 3981.07倍 | |
| 37dB | 70.79倍 | 5011.87倍 | |
| 38dB | 79.43倍 | 6309.57倍 | |
| 39dB | 89.13倍 | 7943.28倍 | |
| 40dB | 100.00倍 | 1万倍 | 0.0100 |
| 41dB | 112.20倍 | ||
| 42dB | 125.89倍 | | |
| 43dB | 141.25倍 | | |
| 44dB | 158.49倍 | | |
| 45dB | 177.83倍 | | |
| 46dB | 199.53倍 | | |
| 47dB | 223.87倍 | | |
| 48dB | 251.19倍 | | |
| 49dB | 281.84倍 | | |
| 50dB | 316.23倍 | 10万倍 | 0.00316 |
| 51dB | 354.81倍 | | |
| 52dB | 398.11倍 | | |
| 53dB | 446.68倍 | | |
| 54dB | 501.19倍 | | |
| 55dB | 562.34倍 | | |
| 56dB | 630.96倍 | | |
| 57dB | 707.95倍 | | |
| 58dB | 794.33倍 | | |
| 59dB | 891.25倍 | | |
| 60dB | 1000.00倍 | 100万倍 | 0.00100 |
| 61dB | 1122.02倍 | ||
| 62dB | 1258.93倍 | ||
| 63dB | 1412.54倍 | ||
| 64dB | 1584.89倍 | ||
| 65dB | 1778.28倍 | ||
| 66dB | 1995.26倍 | ||
| 67dB | 2238.72倍 | ||
| 68dB | 2511.89倍 | ||
| 69dB | 2818.38倍 | ||
| 70dB | 3162.28倍 | １千万倍 | |
| 71dB | 3548.13倍 | ||
| 72dB | 3981.07倍 | ||
| 73dB | 4466.84倍 | ||
| 74dB | 5011.87倍 | ||
| 75dB | 5623.41倍 | ||
| 76dB | 6309.57倍 | ||
| 77dB | 7079.46倍 | ||
| 78dB | 7943.28倍 | ||
| 79dB | 8912.51倍 | ||
| 80dB | 10000.00倍 | １億倍 | |
| 81dB | 11220.20倍 | ||
| 82dB | 12589.30倍 | ||
| 83dB | 14125.40倍 | ||
| 84dB | 15848.90倍 | ||
| 85dB | 17782.80倍 | ||
| 86dB | 19952.60倍 | ||
| 87dB | 22387.20倍 | ||
| 88dB | 25118.90倍 | ||
| 89dB | 28183.80倍 | ||
| 90dB | 31622.80倍 | 10億倍 | |
| 91dB | 35481.30倍 | ||
| 92dB | 39810.70倍 | ||
| 93dB | 44668.40倍 | ||
| 94dB | 50118.70倍 | ||
| 95dB | 56234.10倍 | ||
| 96dB | 63095.70倍 | ||
| 97dB | 70794.60倍 | ||
| 98dB | 79432.80倍 | ||
| 99dB | 89125.10倍 | ||
| 100dB | 100000.00倍 | 100億倍 | |